Hach-Lange Piston pipette - Manual (Page 27)

25
Section 8 Troubleshooting
The following table is intended to help you to identify and
eliminate errors:
Table 2 Troubleshooting
Error Possible cause Response
Leakage
Tip not attached
properly
Fix tip firmly in place
Foreign bodies
between cone and
tip
Clean the cone and
attach a new tip
Foreign bodies
between O-ring and
piston
Clean and grease
the O-rings and the
piston in the cylinder.
Use the supplied
grease
Insufficient grease
on the O-rings and
the piston
Grease adequately
Defective O-rings Replace O-rings
Inaccurate
pipetting
Incorrect operation
Use pipette as
described in the
manual
Tip not firmly
attached
Attach tip firmly
Calibration has
changed, e.g. due to
faulty operation
Recalibrate
AV_pipette.book Seite 25 Donnerstag, 8. Dezember 2005 3:56 15